docs: def _get_configs_path():
      """Get a list of possible configuration files, from the following
      sources:
      1. All files that exists in constants.CONFS_PATH.
      2. All XDG standard config files for "lago.conf", in reversed
      order of importance.
  
  
      Returns:
          list(str): list of files
  
      """
  
      paths = []
      xdg_paths = [
          path for path in base_dirs.load_config_paths('lago', 'lago.conf')
      ]
      paths.extend([path for path in CONFS_PATH if os.path.exists(path)])
      paths.extend(reversed(xdg_paths))
      return paths